£100m Boost For Biggest UK Hydro Scheme In Decades
The title of this post, is the same as that of this article on the BBC.
This is the sub-heading.
A giant hydro scheme which would double the UK’s ability to store energy for long periods is taking a leap forward with a £100m investment by SSE.
These are the first three paragraphs.
The proposed 92m-high dam and two reservoirs at Coire Glas in the Highlands would be Britain’s biggest hydroelectric project for 40 years.
Scottish ministers approved the 1.5 GW pumped storage facility in 2020.
But power giant SSE wants assurances from the UK government before finally signing it off.
There are two major problems with this scheme.
Why The Forty Year Wait?
I am an Electrical and Control Engineer and it is a scandal that we are waiting forty years for another pumped storage scheme like the successful Electric Mountain or Cruachan power stations to arrive.
Petrol or diesel vehicles have batteries for these three main purposes.
- To start the engine.
- To stabilise the output of the generator or alternator.
- To provide emergency power.
As to the latter, I can’t be the only person, who has dragged a car out of a ford on the starter motor. But think of the times, you’ve used the hazard warning lights, after an accident or an engine failure.
The nightmare of any operator of a complicated electricity network like the UK’s is a black start, which is defined by Wikipedia like this.
A black start is the process of restoring an electric power station or a part of an electric grid to operation without relying on the external electric power transmission network to recover from a total or partial shutdown.
Hydro electric power stations and especially those that are part of pumped storage schemes are ideal for providing the initial power, as they are often easy to start and have water available. Cruachan power station has a black start capability, but at 440 MW is it big enough?
Over the last few years, many lithium-ion batteries have been added to the UK power network, which are used to stabilise the grid, when the sun isn’t shining and the wind isn’t blowing.
There are four pumped storage hydro-electric schemes in the UK.
- Cruachan – 440 MW/7 GWh – 1965
- Dinorwig (Electric Mountain) – 1800 MW/9.1 GWh -1984
- Ffestiniog – 360MW/1.44 GWh – 1963
- Foyers – 300 MW/6.3 GWh – 1974
Note.
- I always give the power output and the storage capacity for a battery, if it is known.
- According to Wikipedia, Scotland has a potential for around 500 GWh of pumped storage.
- The largest lithium-ion battery that I know, that is being planned in the UK, is Intergen’s 320 MW/640 MWh battery at Thames Gateway, that I wrote about in Giant Batteries Will Provide Surge Of Electricity Storage. It’s smaller than any of the four current pumped storage schemes.
- The Wikipedia entry for Coire Glas says that it is a 1.5 GW/30 GWh pumped storage hydro-electric power station.
I very much feel that even one 1.5 GW/30 GWh pumped storage hydro-electric power station must make a big difference mathematically.
Why have we had to wait so long? It’s not as though a pumped storage hydro-electric power station of this size has suffered a serious disaster.
Drax Needs Assurances Too?
The BBC article says this.
Scotland’s only other pumped storage scheme, operated by Drax Group, is housed within a giant artificial cavern inside Ben Cruachan on the shores of Loch Awe in Argyll.
The North Yorkshire-based company plans to more than double the generating capacity of its facility, nicknamed Hollow Mountain, to more than 1GW, with the construction of a new underground power station.
But both Drax and SSE have been reluctant to press ahead without assurances from Whitehall.
It looks like the right assurances would open up at least two pumped storage hydro-electric power station projects.
But it could be better than that, as there are other projects under development.
- Balliemeanoch – 1.5GW/45 GWh
- Corrievarkie – 600 MW/14.5 GWh
- Loch Earba – 900 MW/33 GWh
- Loch Kemp – 300 MW/9 GWh
- Red John – 450 MW/2.8 GWh
This totals to 3750 MW/104.3 GWh or 5850 MW/134.3 GWh with the addition of Coire Glas and the extension to Cruachan.
Getting the assurances right could result in large amounts of construction in Scotland!
What Assurances Do Power Giants SSE And Drax Want Before Signing Off?
This news item on SSE Renewables, which is dated 18th March 2022, is entitled Ministerial Roundtable Seeks To Unlock Investment In UK Energy Storage.
These three paragraphs gives details of the meeting.
Business leaders have met with UK Energy Minister the Rt Hon Greg Hands MP to discuss how the government could unlock significant investment in vital energy storage technologies needed to decarbonise the power sector and help ensure greater energy independence.
The meeting was organised by the Long-Duration Electricity Storage Alliance, a new association of companies, progressing plans across a range of technologies to be first of their kind to be developed in the UK for decades.
Representatives from Drax, SSE Renewables, Highview Power and Invinity Energy Systems met with The Rt Hon Greg Hands MP, Minister of State for Business, Energy and Clean Growth [yesterday].
But they still don’t seem to have come up with a funding mechanism.
- In this case, it seems that multiple politicians may not be to blame, as Greg Hands was the Minister of State for Business, Energy and Clean Growth until the 6th of September 2022, when he handed over to Graham Stuart, who is still the incumbent.
- Could it be that civil servants for this problem need to be augmented by a Control Engineer with mathematical modelling skills from a practical university?
It is the sort of problem, I would love to get my teeth into, but unfortunately my three mentors in accountancy and banking; Bob, Brian and David, who could have helped me, have all passed on to another place to help someone else with their problems.
I’ve just had a virtual meeting with all three and they told me to look at it like a warehousing system.
Consider.
- It would be very easy to measure the amount of water stored in the upper reservoir of a pumped storage hydro-electric power station.
- It would also be easy to measure the electricity flows to and from the pumped storage hydro-electric power station.
- A monetary value could be placed on the water in the upper reservoir and the flows, depending on the current price for electricity.
So it should be possible to know that a pumped storage hydro-electric power station, was perhaps storing energy as follows.
- 10 GWh for SSE
- 8 GWh for RWE
- 6 GWh for Scottish Power
- 6 GWh is not being used
And just as in a warehouse, they would pay a fee of so much for storing each GWh for an hour.
- The system would work with any type of storage.
- Would competition between the various storage sites bring down prices for storing electricity?
- Pumped storage operators would get a bonus when it rained heavily.
- Just as they do now, electricity generators would store it when prices are low and retrieve it when prices are high.
A lot of the rules used to decide where electricity goes would still work.
Offshore Drone Challenge Takes Off
The title of this post, is the same as that of this article on offshoreWIND.biz.
This is the sub-heading.
German energy company EnBW and its project partner, the German Aerospace Center (DLR), have published the conditions of entry and the specific flight tasks for the Offshore Drone Challenge (ODC) for the first time.
This is the first paragraph.
As part of the Offshore Drone Challenge, drone manufacturers and service providers are invited to demonstrate their technologies for transporting maintenance equipment to offshore wind farms.
It’s an interesting idea and would make a good television program.
But I suspect, that the winner will be a Ukrainian company, as recently, they’ve had a lot of practice delivering cargoes with a high level of precision into confined and difficult places.
BW Ideol In Talks To Raise EUR 40 Million For Floating Wind Development
The title of this post, is the same as that of this article on offshoreWIND.biz.
This is the sub-heading.
Norway-headquartered BW Ideol and French state-owned investment company ADEME Investissement have agreed to enter into exclusive negotiations for EUR 40 million in funding by ADEME Investissement for BW Ideol’s project development activities.
The rest of the post is all about the clever, but I suspect legal ways, that the € 40 million is raised.
When I needed any advice in that area, I used to consult my late friend the banker; David, who is mentioned in Diversifying A US$200 billion Market: The Alternatives To Li-ion Batteries For Grid-Scale Energy Storage.
When he needed computing advice, that is another story.
RWE Underlines Commitment To Floating Offshore Wind In The Celtic Sea Through New ‘Vision’ Document
The title of this post, is the same as that of this press release from RWE.
These are the three bullet points.
- Offshore floating wind in the Celtic Sea could unlock 3,000 jobs and £682 million in supply chain opportunities by 2030
- RWE is targeting the development at least 1GW of floating wind in the region
- Using experience from demonstrator projects and partnerships with local supply chain to strengthen ambitions
These opening three paragraphs outline more of RWE’s vision.
RWE, the world’s second largest offshore wind player and largest generator of clean power in Wales, has unveiled its vision for the future of floating offshore wind in the Celtic Sea region and the opportunities it presents from new large-scale, commercial projects. Entitled “RWE’s Vision for the Celtic Sea”, the document was unveiled during day one of the Marine Energy Wales conference, in Swansea, where RWE is the Platinum Sponsor.
RWE sees floating wind technology as the next frontier in the development of the offshore wind sector, and which could potentially unlock a multi-billion pound opportunity for the broader Celtic Sea region and the UK.
Studies anticipate the first GW of floating wind to be developed in the Celtic Sea could potentially deliver around 3,000 jobs and £682 million in supply chain opportunities for Wales and the south west of England. Against this backdrop, it’s anticipated the technology could unlock a resurgence in Welsh industry, helping to decarbonise industry and transport, spur on academic innovation, and spearhead the growth of a new, highly skilled workforce.
Reading further down, there are these statements.
- RWE will be bidding in the upcoming Celtic Sea auction with the aim of securing at least 1 gigawatt (GW) of installed capacity, to be developed throughout the 2020’s.
- The Celtic Sea region is pivotal to RWE’s ‘Growing Green’ strategy in the UK, where we expect to invest £15 billion in clean energy infrastructure by 2030.
- A cooperation agreement with Tata SteelUK to understand and explore the production of steel components that could be used in high-tech floating wind foundations and structures for projects in the Celtic Sea.
- The company has also signed agreements with ABP Port Talbot, the Port of Milford Haven and Marine Power Systems of Swansea, to explore opportunities for building the supply chain for floating wind.
- RWE is the largest power producer and renewable energy generator in Wales with more than 3GW of energy across 11 sites.
- If successful in the leasing round, RWE’s Celtic Sea projects will also play a key role in the development of RWE’s Pembroke Net Zero Centre, as well as decarbonizing wider industrial processes and transportation across South Wales.
It looks like RWE are very serious about the Celtic Sea and Pembrokeshire.
Pembroke Net Zero Centre
The Pembroke Net Zero Centre looks to be a powerful beast.
It will be located at the 2200 MW Pembroke power station, which is the largest gas-fired power station in Europe.
These are the first two paragraphs on its web page.
RWE is a world leader in renewables, a market leader in the development of offshore wind and a key driver of the global energy transition. In turn, Pembroke is looking to continue its transformation as part of a decarbonisation hub under the title of the PNZC, linking-up with new innovative technologies needed for a low carbon future, including hydrogen production, Carbon Capture and Storage and floating offshore wind.
The PNZC will bring together all areas of the company’s decarbonisation expertise, including innovation, offshore wind, power engineering, trading and the development/operation of highly technical plants.
The page also talks of burning hydrogen in the power station and an initial 100-300 MW ‘pathfinder’ electrolyser on the Pembroke site.
Conclusion
In some ways, RWE are following a similar philosophy in the area, to that being pursued by SSE at Keadby on Humberside.
As The Crown Estate is talking of 4 GW in the Celtic Sea, it looks like RWE are positioning Pembroke to be the backup, when the wind doesn’t blow.
National Grid Energise World’s First T-Pylons
The title of this post, is the same as that of this press release from National Grid.
These are the four bullet points.
- Electricity is flowing to homes and businesses through the first new pylon design in the UK for nearly 100 years.
- Major milestone in National Grid’s Hinkley Connection project to connect 6 million homes and businesses in the South West to home grown, low carbon energy.
- The T-design, with a single pole and cross shaped arms, is around a third shorter than the traditional design with a smaller ground footprint.
- The T-pylons, along with a new substation and underground cabling, are now incorporated into National Grid’s electricity transmission network delivering electricity in Somerset and across England and Wales.
This is the first paragraph.
National Grid has successfully energised 36 of the world’s first T-pylons between Bridgwater and Loxton in Somerset. The new shaped pylons have been constructed as part of the £900 million Hinkley Connection Project, a new 57 km high-voltage electricity line that will connect six million homes and businesses to new sources of home grown, low carbon energy and help the UK to meet its net zero by 2050 target.
There is a video in the press release, which is well worth a view.
- The size of the pylons certainly reduces their visibility.
- It appears there are seven cables on either side.
These pictures show the transmission lines to the Sizewell power station site.
Note.
- The lower height is very noticeable.
- There seem’s to be a lot more wires.
- I would assume, that the reduced number of components, reduces the cost of installation and maintenance.
The installation proved that even in the most mundane of applications, innovation can bring positive results.
The T-pylons are a design by Danish company; Bystrup.
This is the specification from their comprehensive web-page.
- Power – 2 x 400 kV
- Height – 35 metres / 114 feet
- Units/km – 3 (5 units/mile)
- Material – Hot-dip galvanised steel, painted
- Assembly – On-site and quick – less than 10 parts
- Installation – Simple monopile foundation
- Production possible anywhere in the world
- Developed – 2011-2014
They’ve also won several awards.
- 1st prize in int. competition for RIBA
- Nominated for the IET Innovation Award 2014
- Gold Prize, CIGRE Seoul 2017
- Award winner, UK Steel Awards (SSDA) 2017
I would hope to see more in the UK.
Thistle Wind Partners Rename 2 GW ScotWind Offshore Wind Projects
The title of this post, is the same as that of this article on offshoreWIND.biz.
This is the sub-heading.
Thistle Wind Partners (TWP), a consortium founded by DEME Concession, Qair, and Aspiravi, has announced the final names for its two ScotWind offshore wind projects
This is the first paragraph.
TWP won the seabed leasing rights for two offshore wind projects in the ScotWind auction last year, in which 25 GW of capacity was awarded.
These paragraphs give details of the new names and an update on the sizes of the turbines.
The consortium plans to build the 1 GW Bowdun offshore wind project, originally named Cluaran Deas Ear, located off the coast of Stonehaven and lying 44 kilometres out from the landmark of Bowdun Head.
The site covers an area of 187 square kilometres (in the E3 leasing zone). The project is planned to feature between 50 and 60 wind turbines with an individual capacity of 18-25 MW each, depending upon the final design choice.
The second wind farm, located 33 kilometres from the East Mainland of Orkney in the NE2 leasing zone, is named the Ayre Offshore Wind Farm, originally called Clearan Ear-Thuath. This will be a 1 GW floating wind project following a similar base case for turbine numbers and capacity as Bowdun.
Note.
- They appear to be using 18-25 MW turbines.
- These are the first wind farms, that have talked about using such large turbines.
- 18 MW turbines would need 55 turbines for a GW.
- 25 MW turbines would need 40 turbines for a GW.
- Ayre wind farm has a web page, which says that it will have 56 x 18 MW turbines.
- Bowden wind farm has a web page, which says that it will have 56 x 18 MW turbines.
- The web site does say that the size and number of turbines is provisional.
Construction of both farms should start in 2029, with commissioning in 2033.
A Worthwhile Tailpiece
The article has a good tailpiece in the last paragraph.
TWP is one of the founders of a new initiative from the University of Highlands & Islands to deliver a STEM (Science, Technology, Engineering, and Mathematics) outreach programme for primary schools in Scotland, providing materials and teacher training.
TWP obviously intend to catch the next generation of technologists young.
Conclusion
Thistle Wind Partners have gone for the bold option.
Budweiser To Convert Second UK Brewery To Hydrogen
The title of this post, is the same as that of this article on The Engineer.
This is the sub-heading.
Samlesbury Brewery in Lancashire is set to be powered by green hydrogen from 2025, according to new plans announced by owner Budweiser Brewing Group.
This paragraph outlines what will be done at Salmesbury.
The Samlesbury Net Zero project will see the brewery paired with a new hydrogen production facility (HPF), delivered by UK hydrogen services company Protium. Situated adjacent to the brewery, the HPF will provide green hydrogen to meet the thermal demand of the brewing processes, as well as the building’s other heating requirements.
Note.
- A refuelling station for hydrogen-ready HGVs will also be developed as part of the project.
- Heat from the HPF will be recovered and used in Budweiser’s bottling process.
- This is the second project involving Budweiser and Protium, after one at Magor in South Wales.
- Beers produced at the facility include Budweiser, Stella Artois and Corona.
I may have had the odd bottle of Corona in the States, but I’ve generally drunk real ale only since, I started having halves of Adnams with my father at the age of thirteen.
Now, because I’m on Warfarin, I more or less exclusively drink zero-alcohol beers, most of which is Adnams, straight from the brewery.
I’ve yet to find any beer which is less than 0.5 % alcohol, has contained enough gluten to have an effect on my gut.
I have discussed this with experienced brewers and they are not surprised, as the brewing process for zero-alcohol beers doesn’t use much barley.
Conclusion
We need more integrated projects like this, that both decarbonise industrial processes and provide filling stations for hydrogen-powered vehicles.
Vattenfall Selects Norfolk Offshore Wind Zone O&M Base
The title of this post, is the same as that of this article on offshoreWIND.biz.
This is the sub-heading.
Vattenfall has selected Peel Ports as the preferred bidder, and its port at Great Yarmouth as the location for the operations and maintenance base of the Norfolk Offshore Wind Zone in the UK.
This was said about the competition to host the facility.
Vattenfall said that the competition was fierce to secure the agreement with an excellent bid from Lowestoft and Associated British Ports. With both ports offering excellent services it is clear that East Anglia’s potential as a superpower of offshore wind is secure.
I have a few thoughts.
Lowestoft In Suffolk And Great Yarmouth In Norfolk Must Work Together
This Google Map shows the coast between the two ports.
Note.
- Great Yarmouth is at the top of the map.
- Lowestoft is at the bottom of the map.
- The two towns are less than twelve miles apart.
- The Great Yarmouth Outer Harbour, is towards the top of the map.
The Google Map shows the port in more detail.
Note.
- Great Yarmouth Outer Harbour only opened in 2009.
- It has an average depth of 10 metres.
- It was planned as a container port, but the ships didn’t materialise.
- Some consider it to be a bit of a white elephant.
Could the Outer Harbour be used to assemble floating wind turbines?
I think it could but at present, there are no plans to use floating wind turbines off the coast of Norfolk.
I suspect though, if someone decided to build floating wind farms to the East of the Vattenfall’s Norfolk Zone fields, that Great Yarmouth Outer Harbour could be used to assemble the floating wind turbines.
This Google Map shows the Port of Lowestoft.
Note.
- There is over a kilometre of quays.
- It doesn’t have the water depth of Great Yarmouth.
- There is a lot of brownfield sites along the River Waveney.
- The East Anglia One wind farm is managed from Lowestoft.
Both harbours have their good and bad points.
- Both have good rail connections to Norwich.
- Lowestoft has a rail connection to Ipswich and has been promised a London service.
- Road connections to Ipswich and Norwich need improvement.
I suspect that it was a close contest, as to the port that got the Vattenfall contract.
A Lowestoft And Great Yarmouth Rail Connection
This map from Open RailwayMap between the two towns.
Note.
- The existing railways are shown in yellow.
- Former railways are shown in black dotted lines.
- There was even a railway along the coast.
The only rail connection between the ports is via Reedham, where the track layout is shown on this second OpenRailwayMap.
Note.
- Reedham station is in the North West corner on the line to Norwich.
- The line going North-East goes to Great Yarmouth.
- The line going South goes to Lowestoft.
There used to be a chord connecting Great Yarmouth and Lowestoft, but it was cancelled by Beeching’s grandfather.
There is certainly scope to improve the rail connection between the two ports.
- There could be a convenient change at Reedham, if the timetables were adjusted.
- Trains could reverse at Reedham.
- The chord could be reopened to allow direct trains.
It wouldn’t be the most challenging rail project to have an hourly rail service between the two ports.
A Lowestoft And London Rail Service
This was promised with a frequency of something like four trains per day (tpd)
I think it should run between London and Yarmouth with a reverse at Lowestoft.
Hydro-Storage Options To Be Studied For Grängesberg
The title of this post, is the same as that of this news item from Anglesey Mining.
These are the highlights of the news item.
- Anglesey Mining plc, together with its 49.75% owned subsidiary Grängesberg Iron AB (“GIAB”) have entered into an MoU with Mine Storage to investigate the potential for the Grängesberg Mine to be converted into a Pumped Hydro-Storage project at the end of the mine’s producing life.
- Pumped-Hydro Storage is a green-energy storage solution that utilises water and gravity to store electrical energy. An underground mine can provide a closed-loop solution using proven, pumped hydro-power technology. Essentially, the system involves water being gravity fed through pipes down a shaft into the turbines, which produce electricity for supply to the grid and also pump the water back to surface. The mine storage system has a high round-trip efficiency of 75-85% and proven durability.
- The MoU with Mine Storage could lead to numerous future benefits.
I like this project.
Too often, when mines, quarries or other large operations come to the end of their economic lives, they are just abandoned in the hope that something worthwhile will happen.
But here we have a company planning the end of an iron ore mine in a way that will turn it into a source of future revenue.
I have a few thoughts.
Mine Storage
Mine Storage are a Swedish company with an informative web site.
The web site answered most of my questions.
Mines Are Moving From a Liability To A Resource
Consider.
- Gravitricity are using mines to store energy using cables and weights.
- Charlotte Adams and her team at Durham University are developing the use of the heat in abandoned coal mines.
- The Global Centre of Rail Excellence is being developed in a disused opencast mine in Wales.
- RheEnergise are developing their first High Density Hydro system in the Hemerdon Tungsten Mine in Devon.
And now we have this co-operation between Anglesey Mining and Mine Storage working together on pumped storage hydroelectricity.
Where is Grängesberg
This Google Map shows the location of Grängesberg.
It is convenient for storing energy for Stockholm.
SSE, Marubeni & CIP’s Floating Wind Farm In Scotland Could Have 270 Turbines And 6 Offshore Substations
The title of this post, is the same as that of this article on offshoreWIND.biz.
This is the sub-heading.
SSE Renewables, Marubeni and Copenhagen Infrastructure Partners (CIP) have submitted the Environmental Impact Assessment (EIA) Scoping Report for the array area of their Ossian floating wind farm to Marine Scotland. According to the report, the wind farm could have up to 270 wind turbines and six offshore substations.
Ossian floating wind farm will be one of the world’s largest floating wind farms.
- If it sticks to 3.6 GW, 270 turbines will mean 13 MW turbines.
- 14 MW would be 3.8 GW and 15 MW would be 4 GW, with the same number of turbines.
- If they stick to 3.6 GW, this could be 257 x 14 MW or 240 x 15 MW turbines.
- Knowing ambitious engineers as I do and given that 15 MW turbines are on the way, I wouldn’t be surprised to see 15 MW turbines, to get the full 4 GW.
- According to this press release from Siemens Gamesa, they can make the turbine blades for their 15 MW turbines in Hull.
These two paragraphs outline the design possibilities.
For the floating wind turbine foundations, the consortium is considering either semi-submersible or Tension Leg Platform (TLP) structures and three mooring configurations; catenary, semi taut and taut mooring lines. Anchoring options currently under consideration include driven piles, and a number of different embedded anchor types, including suction piles, Drag Embedment Anchors (DEA) and VLA, with up to nine anchors required per foundation.
Floating foundations might not only be used for the wind turbines, but also for Ossian’s offshore substations.
When I look at a project like this, I also think of the project management possibilities.
- Will the six offshore sub-stations be positioned, so that as turbines are installed, they can be commissioned and start generating electricity?
- Is there software to optimise the order of installation?
- Has a specialist project management system been written for wind farms?
If you need a program to do analyse anything like that, buy me a drink and we’ll talk about it.
It’s about time, some of the algorithms in my brain were put to use.
The article also says this.
The 3.6 GW Ossian floating wind farm is planned to be up and running before the end of the decade.
My experience tells me, that if the right philosophy is used, that estimated date could be beaten.
It’s just that it is a project with so many complexities, that a proper mathematical model of its construction would yield benefits.
The Anonymous Widower 